. >> named for steven siller, a new york city fire fighter who died that day. the race retraces the path siller took from the brooklyn battery tunnel to world trade center wearing 60 pounds of gear strapped to his back. he ran through the tunnel with all the gear on to a burning building. an amazing guy. >>> a much different kind of competition we'll show you. one that pits man against deer with spectacular results. >> skateboarders, fully equipped with safety gear headed down the mountain, all going well. until a deer seemingly appears out of nowhere. slams into one of those borders. man. >> uh-oh. we're told the deer wasn't injured. the skateboarder probably just still eating dust. got to look out for the deer. >> it is so true. deer crossings, car or skateboarder. looks like a body check. like a hockey check. >> check this out. yeah. >> yeah. >> thank goodness he's okay. looks kind of steep. looks like it falls off a little bit. >> are we sure that the deer is okay? >> i guess we're sure that the skateboarder is okay and the deer apparently ran off with a de